rJ

RJ is a widely used initialism with several meanings. In Brazil, RJ most often refers to the state of Rio de Janeiro (Estado do Rio de Janeiro) and to its capital city, Rio de Janeiro. The state lies in the Southeast region, bordered by Espírito Santo, Minas Gerais, and the Atlantic Ocean, and features a diverse landscape that includes mountains, forests, and coastal areas. Its economy is diversified, with strengths in services, industry, ports, oil and gas, and tourism. The capital city is a major urban center known for its coastal setting and cultural institutions.

Rio de Janeiro city is a prominent cultural and tourist destination, famed for landmarks such as Christ the Redeemer atop Corcovado and Sugarloaf Mountain, as well as its beaches like Copacabana and Ipanema. It hosts large-scale events, including major cultural festivals that attract international visitors. The metropolitan area is one of the largest in Brazil and serves as a key hub for commerce, media, and entertainment.

RJ also stands for radio jockey, a broadcaster who presents music and talk segments on radio stations. In other contexts, RJ can function as an acronym or code for various organizations, products, or projects, depending on the domain, making its meaning highly context-dependent.